e coal a. irption brakes, which form the resistance that the counter, and a tachometer for showing the speed in and heavy material used during the tests. lo^ . notive must overcome, in order to exert its trac- revolutions per minute. The water is weighed in two tanks, filled alternately,… … A FREIGHT ENGINE UNDERGOING A TEST AT THE LOCOMOTIVE-TESTING PLANT OF THE LOUISIANA PURCHASE EXPOSITION. under him are an assistant and a foreman and a taken by piping to the injectors. The traction dyna- the shaft which transmits the power to be absorbed; large staff of trained observers who take…
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